WO2012066280A3 - Blood analysis apparatus and method - Google Patents

Blood analysis apparatus and method Download PDF

Info

Publication number
WO2012066280A3
WO2012066280A3 PCT/GB2011/001602 GB2011001602W WO2012066280A3 WO 2012066280 A3 WO2012066280 A3 WO 2012066280A3 GB 2011001602 W GB2011001602 W GB 2011001602W WO 2012066280 A3 WO2012066280 A3 WO 2012066280A3
Authority
WO
WIPO (PCT)
Prior art keywords
blood
group
oxygenator
properties
analysis apparatus
Prior art date
Application number
PCT/GB2011/001602
Other languages
French (fr)
Other versions
WO2012066280A2 (en
Inventor
Andrew Ian Hart
Original Assignee
Spectrum Medical Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spectrum Medical Ltd filed Critical Spectrum Medical Ltd
Publication of WO2012066280A2 publication Critical patent/WO2012066280A2/en
Publication of WO2012066280A3 publication Critical patent/WO2012066280A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/487—Physical analysis of biological material of liquid biological material
    • G01N33/49—Blood
    • G01N33/4925—Blood measuring blood gas content, e.g. O2, CO2, HCO3
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring blood gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/32—Oxygenators without membranes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3623—Means for actively controlling temperature of blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • A61M1/1698—Blood oxygenators with or without heat-exchangers

Abstract

A blood analysis apparatus is provided for use in a system in which blood from a patient is provided to an oxygenator (40) and in which blood from the oxygenator (40) is provided back to the patient. The apparatus comprises a first group of sensors (6, 7) for directly measuring a corresponding first group of properties of the blood provided to or from the oxygenator (40). The apparatus comprises a second group of sensors (1, 2, 3, 4) for directly measuring a corresponding second group of properties of a gas provided to or from the oxygenator (40). The apparatus comprises a processor (60) for determining a value for the partial pressure of oxygen in the blood and/or a value for the partial pressure of carbon dioxide in the blood in dependence upon the first group of directly measured properties and the second group of directly measured properties.
PCT/GB2011/001602 2010-11-18 2011-11-15 Blood analysis apparatus and method WO2012066280A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1019488.4A GB2485558B (en) 2010-11-18 2010-11-18 Blood analysis apparatus for use with an oxygenator
GB1019488.4 2010-11-18

Publications (2)

Publication Number Publication Date
WO2012066280A2 WO2012066280A2 (en) 2012-05-24
WO2012066280A3 true WO2012066280A3 (en) 2012-08-02

Family

ID=43431606

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2011/001602 WO2012066280A2 (en) 2010-11-18 2011-11-15 Blood analysis apparatus and method

Country Status (2)

Country Link
GB (1) GB2485558B (en)
WO (1) WO2012066280A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014198868A1 (en) 2013-06-13 2014-12-18 Koninklijke Philips N.V. Device and method for determining a partial carbon dioxide pressure in a subject of interest
GB2557863B (en) * 2014-12-03 2020-09-16 Spectrum Medical Ltd Ventilation System
GB2540724A (en) 2015-03-06 2017-02-01 Spectrum Medical Ltd Blood analysis apparatus and method
GB2533027B (en) 2014-12-03 2020-06-03 Spectrum Medical Ltd Control system
IT201800005692A1 (en) * 2018-05-24 2019-11-24 DEVICE FOR THE MEASUREMENT OF CARBON DIOXIDE IN A WORKING GAS
CN109498936B (en) * 2018-10-15 2021-02-05 北京工业大学 Oxygen supply decision-making system for in vitro life support
CN109745591A (en) * 2019-02-01 2019-05-14 江苏赛腾医疗科技有限公司 A kind of Ambulatory monitoring host and cardiopulmonary bypass system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5591399A (en) * 1993-10-14 1997-01-07 Goldman; Julian M. System for diagnosing oxygenator failure
WO1997016213A2 (en) * 1995-10-31 1997-05-09 Baxter International Inc. Extracorporeal blood oxygenation system having integrated blood pump, heat exchanger and membrane oxygenator
WO2007075089A1 (en) * 2005-12-29 2007-07-05 Rikshospitalet-Radiumhospitalet Hf Method and apparatus for estimating a pao2 value for a patient subject to extracorporeal circulation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20041611D0 (en) * 2004-04-20 2004-04-20 Rikshospitalet Universitetskli Method and apparatus for estimating a PaCO2 value for a patient having extracorporeal blood circulation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5591399A (en) * 1993-10-14 1997-01-07 Goldman; Julian M. System for diagnosing oxygenator failure
WO1997016213A2 (en) * 1995-10-31 1997-05-09 Baxter International Inc. Extracorporeal blood oxygenation system having integrated blood pump, heat exchanger and membrane oxygenator
WO2007075089A1 (en) * 2005-12-29 2007-07-05 Rikshospitalet-Radiumhospitalet Hf Method and apparatus for estimating a pao2 value for a patient subject to extracorporeal circulation

Also Published As

Publication number Publication date
GB2485558A (en) 2012-05-23
WO2012066280A2 (en) 2012-05-24
GB201019488D0 (en) 2010-12-29
GB2485558B (en) 2018-04-25

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